(a) All processes used in preparing any fish product in official establishments shall be subject to inspection by Program employees unless such preparation is conducted as or consists of operations that are exempted from inspection under 9 CFR 303.1. No fixtures or appliances, such as tables, trucks, trays, tanks, vats, machines, implements, cans, or containers of any kind, shall be used unless they are of such materials and construction as will not contaminate or otherwise adulterate the product and are clean and sanitary. All steps in the preparation of edible products shall be conducted carefully and with strict cleanliness in rooms or compartments separate from those used for inedible products.

(b) It shall be the responsibility of the operator of every official establishment to comply with the Act and the regulations in this subchapter. To carry out this responsibility effectively, the operator of the establishment shall institute appropriate measures to ensure the maintenance of the establishment and the preparation, marking, labeling, packaging and other handling of its products strictly in accordance with the sanitary and other requirements of this subchapter.

All ingredients and other articles used in the preparation of any fish product must be clean, sound, healthful, wholesome, and otherwise such as will not result in the product's being adulterated.

Samples of products, water, dyes, chemicals, preservatives, spices, or other articles in any official establishment shall be taken, without cost to the Program, for examination, as often as may be deemed necessary for the efficient conduct of the inspection.

Ready-to-eat fish products are subject to the requirements in part 430 of this chapter.

The requirements for canning and canned products in 9 CFR part 431 apply to fish products that are canned.

Edible tissues of fish with residues exceeding tolerance levels specified in 21 CFR part 556 or established in an import tolerance under 21 U.S.C. 360b(a)(6) are adulterated within the meaning of section 402(a)(2)(C)(ii) of the Federal Food, Drug, and Cosmetic Act because they bear or contain a new animal drug that is unsafe within the meaning of section 512 of the Federal Food, Drug, and Cosmetic Act.

In the event that there is polluted water (including but not limited to flood water) in an official establishment, all products and ingredients for use in the preparation of the products that have been rendered adulterated by the water must be condemned. After the polluted water has receded from the establishment, the establishment must follow the cleaning and sanitizing procedures in § 318.4 of this chapter.

A non-Federal analytical laboratory that has met the requirements for accreditation specified in 9 CFR part 439 and hence, at an establishment's discretion, may be used in lieu of an FSIS laboratory for analyzing official regulatory samples. Payment for the analysis of regulatory samples is to be made by the establishment using the accredited laboratory.